Garage Furnace Advice

[wiedemab]

As some of you may know from my earlier post about my concrete floor. I am having a garage/shop built. It is 30X44' w/ 12 foot ceiling and "bonus room" trusses for an upstairs, mainly to just store parts etc.. It is 2X6 framed and will be well insulated. I've ran a gas line out (underground) from my house and plan to put a gas furnace in it to heat it.

My thought has been to put a house style high efficiency furnace and duct work in it and locate the furnace in the upstairs and pipe ducts down the back wall of the building. I may block them out to the interior of the wall so as to not take away from my insulation inside that wall.

I'm looking for advice....... Is my plan a good idea or would you recommend another option for the furnace and/or location of furnace etc..

Thanks in advance for your thoughts - as always they are appreciated.

[DBasher]

I have a friend that has the same size shop with a bathroom and small open office area. For years he had his furnace in the corner sitting on a return plenum and just a 5' stick of 12" with a 90 pointing out towards the other corner.

The more time I spent in the shop the more it bugged me. I ended up running across the back wall reducing from 12" down to 8", each of the 3 bays have a stub about 3' out with a grill on the end. I put balance dampers in each run and a drop for the bathroom. All exposed round pipe, looks good.

His place is set at 60 when he's around, down to 50 when he heads outta town. About the only difference he's mentioned is it looks better and warms up quicker.


Dan

[snappytravis]

I have a 30x40 2x6 10ft walls. I heat it with a hotdawg heater I believe I ordered it from air and water out of nebraska. The walls have 2 inches of spray foam and 4 inch batting over that. My only though with the house style heater would be trying to have it upstairs in a central location so your ductwork would go out 20 feet in each direction. It would be interesting to know how much it will take to heat the upstairs part of the garage, might not take much at all. How much will you be in that area? One nice thing is you could hook up central air to the house unit that would be nice. It will be -10 at least tomorrow morning and probably about 35 in the garage with no heat on.

[Beegs]

Originally Posted by snappytravis

I have a 30x40 2x6 10ft walls. I heat it with a hotdawg heater I believe I ordered it from air and water out of nebraska. The walls have 2 inches of spray foam and 4 inch batting over that.

Are you happy with it?

[itsals1]

Brandon
I think using a standard gas furnace,upstairs is a great idea. Why not run duct work in between the floor joists and have the vents come out the ceiling on each side of the building. This way you only have floor vent style covers on the finished ceiling, and are able to have heat above your garage doors(your biggest heat loss) and also not affect any lights,ceiling fans,or other things you would mount on the ceiling. Just a thought?
Travis

[dontlifttoshift]

I have a HotDawg in my 26x40. 2x4 walls and 14" of insulation in the ceiling. It's plenty warm in there. The thermostat stays on 60 all the time.

If I were building, I would go the house furnace/duct work route and have Air Conditioning installed as well.